Replying to a message of Cindy Haglund to Bob Ackley:

 CH>>  Is the Rh factor limited to any one group?

 BA>> No.  IIRC the Rh factor was first isolated in Rhesus monkeys - thus
 BA>> the 'Rh.'

 CH>  Yes. So it's common in primates then? So that would be not an origin
 CH> but a common source?

It may be in both cases.  I don't know, I'm not a geneticist or hematologist
and I don't play either on TV.

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